froggy47

Anyone have this to compare to unfixed heads? Especially if you have a later build 11/12/13? Ls7 motor. Thx.

captain vette

Have you try YouTube

Peter_Werks

When I got my Ahp heads (PM guides) done on my 2008 26k mile Z06, I was hoping there would be a huge difference in valve train noise. Honestly, it sounds just as loud as before. The valve train "tick" is extremely audible with the windows rolled up from 1500-2500 rpmish.

I know it's not the answer you were looking for, but maybe that might help some anxiety that I also felt after fixing the car. Curious what others have to say, because it's usually the opposite of my case, I think placebo but idk...

American Heritage

We have a couple Videos on our Youtube where we go over the engine with the camera right after the swap:

We also have more on our Instagram and Facebook:
https://www.instagram.com/americanhe...ormance/?hl=en
https://www.facebook.com/americanher...dmin_todo_tour


https://www.americanheritageperforma...cylinder-heads

73DBG

If you wanna try an quite the LS tick that’s gonna come from the correct sized push rod, and better lifters. The Johnson 2110 SLD are real nice drop ins 👍🏻🇺🇸

froggy47

Thanks that's exactly the comment I was looking for. Loud before, loud after. So you really can't go by sound at all.

Peter_Werks

Sounds really good! Totally regret not doing the 116 cam from you!

American Heritage

Thank you and I agree, love the way our 116 sounds!

Yeah everyone that does our 116 cam absolutely loves it!


https://www.americanheritageperformance.com/